baber/WOPTO huggingface dataset:
Patent GB-825935-A (GB)
Title: Method of improving adherence of luminescent screens
IPC: H01J9/22
Filed: 1956-02-07
Abstract: 825,935. Luminescent screens. THOMAS ELECTRONICS Inc. Feb. 7, 1956 [Feb. 10, 1955], No. 3762/56. Class 39(1). Process of forming a fluorescent coating on a solid surface, e.g. a C.R.T. face plate, comprises forming on the surface a substantially dry coating of a fluorescent material mixed with a water soluble alkali metal silicate, treating the coating with a solution of an alkali metal silicate insolubilising agent selected from the group consisting of acids, salts of strong acids and weak bases, and salts of polyvalent metals, and forming an organic film, e.g. of nitrocellulose, on the coating. A metal, e.g. aluminium, screen can be applied thereafter. The insolubilising agent can be applied by soaking the fluorescent screen with a small quanity of a solution of the agent in water or other volatile solvent, and drying. Alternatively the agent can be applied by adding a small quantity thereof directly to water applied to the screen to take a few drops of nitrocellulose solution. Suitable agents referred to are boric acid, phosphoric acid, acetic acid, ammonium nitrate, barium acetate and-with caution-hydrochloric acid. U.S.A. Specifications 2,298,968, 2,344,081, 2,619,472 and 2,678,888 are referred to.
Patent GB-372362-A (GB)
Title: Improvements in automatic fire extinguishers
IPC: A62C35/60
Filed: 1931-02-06
Abstract: 372,362. Fire-extinguishing. COLLIE, J. H., 22, Hill Road, Birkenhead. Feb. 6, 1931, No. 3775. [Class 47 (ii).] A device for automatically sprinkling a fire - extinguishing powder, for example over a carburetter, comprises a cardboard or like container g which encloses the powder f and a propellant charge of slowburning gunpowder d separated by a partition e of paper or metal foil. The gunpowder is accommodated in a recess in a cardboard washer c. A fuze j is carried up to the gunpowder by a tube h within the container. The container is closed by an easily-collapsable disc k, and is retained in a metal casing i by a flanged ring l. The casing is secured to any convenient support b by a clamp a.
Patent GB-1212908-A (GB)
Title: Improvements in or relating to pulse code modulation transmission systems
Inventor: POSPISCHIL REGINHARD
IPC: H04B17/40
Filed: 1968-09-20
Abstract: 1,212,908. Testing pulse repeater stations. SIEMENS A.G. 20 Sept., 1968, No. 3785/69. Divided out of 1,212,907. Heading H4L. In a P.C.M. system means are provided for testing intermediate stations such as 8, from a terminal exchange 1. At the exchange, normal P.C.M. signals are modulated at 3 by a low frequency rectangular wave from a generator 2, the repetition frequency of the wave being adjustable to a different value for each intermediate station to be tested. The modulation takes place over several frames and is in the form of 100% amplitude modulation so that the output consists of blocks of pulses having an envelope curve defined by the rectangular waveform and whose frequency spectrum is disclosed symmetrically about the bit frequency or in the case of bipolar pulses, half the bit frequency. At the station 8 the incoming pulses are regenerated at 9 and transmitted to the receiving end. The regenerated pulses are also demodulated at 10 to recover the low frequency signal which corresponds, with the pass frequency of a bandpass filter 11 whose output is rectified to operate a relay switch 12. By this means the regenerated signal is fed back via the regenerator 13 for the opposite direction of transmission and at the exchange 1 is supplied via a comparator 4 controlled by the normal synchronizing equipment to a fault indicating instrument 5. In a modification, the test signal is transmitted on by a relay-operated switch to a further terminal exchange for processing. It may be arranged that the synchronizing signals are unaffected by the rectangular wave modulation.
Patent GB-1043811-A (GB)
Title: Seed or plant container
IPC: A01G27/06
Filed: 1964-01-29
Abstract: 1,043,811. Receptacles for growing plants. S. MORI. Jan. 29, 1964 [March 12, 1963], No. 3796/64. Heading A1E. A receptacle for growing plants comprises a container 1 provided with an intermediate part 4 apertured at 6 and having apertured projections 5 which project into a culture solution or water 11 supplied from a tank 8 so that the liquid is fed to the soil 10 by capillary action, the level of liquid in the container 1 being such as to leave an air space below the part 4. The tank outlet 9 is arranged to project through an opening 2 in the container which also serves as an air inlet.
Patent GB-676089-A (GB)
Title: Improvements in safety razor blades
IPC: B26B21/56
Filed: 1951-02-16
Abstract: 676,089. Razor blades. MULLER, 1'. Feb. 16, 1951. [Oct. 7, 1950] No. 3821/51. Class 30. [Also in Group XXII] One, or both, cutting edges of a safety razor blade 1 is provided with spaced, thinned spots bounded, on one side, by a ground surface 3 and, on the other side, by the unground surface of a hollow 2 in the face of the blade. The hollows may be of different depths and are preferably formed alternately on opposite faces of the blade. The blade is manufactured by passing a steel tape through a punching machine which makes locating apertures, and transverse grooves, at which the tape may be broken into separate blades. The tape is then passed through a press tool, which may be incorporated in the punching machine, and which comprises a die and a counterpart each having alternate U-shape recesses 12 and projecting studs 13 to corrugate the edge or edges of the blade. The tape is subsequently passed through rollers to reduce the depths of the corrugations, hardened, tempered and broken into separate blades which are sharpened.
Patent GB-711832-A (GB)
Title: Improvements in steering means for aircraft landing gear
Inventor: CALDWELL HARRY BALSHAW
IPC: B64C25/50
Filed: 1949-02-11
Abstract: 711,832. Undercarriages. ELECTRO-HYDRAULICS. Ltd. May 9, 1950 [Feb. 11, 1949; March 17, 1949], Nos. 3847/49 and 7356/49. Class 4 In a steerable undercarriage, including a pair of transversely spaced landing wheels which are normally constrained to rotate together, steering is effected by disturbing the balance of natural rotation, either by means of differential braking or by alteration of the relative diameters of the wheels without altering their relative speeds of rotation. In the arrangement according to Fig. 1 the wheels 4, 5 normally rotate together, being connected by a friction coupling comprising plates 17 pressed against pads 18 on the respective wheels, application of one of a pair of brakes 9 reducing the speed of the associated wheel and causing slipping of the coupling element. In the construction shown in Fig. 2 the wheels are fixed to a common axle 21 which is tiltable by actuation of a jack 23 to alter the relative diameters of the wheel tyres. According to a third modification, Figs. 4A and 5, the undercarriage leg 1 is raked forwardly so that rotation of the leg is accompanied by alteration in the relative diameters of the wheel tyres as shown in Fig. 5.
Patent GB-1213112-A (GB)
Title: Method and apparatus for increasing the efficiency of electric power generating plants
Inventor: LANG WILLIAM JOSEPH
IPC: H02J15/00
Filed: 1969-01-23
Abstract: 1,213,112. Gas turbine plant; power plant. W.J. LANG. Jan.23, 1969 [Feb.14, 1968; March 20, 1968], No.3861/69. Headings F1G and F1Q. [Also in Division F4] In an electricity generating plant energy is stored during periods of low electrical load requirement by compressing gas by means of electric power and storing the gas under hydrostatic pressure in a subterranean reservoir, the gas being withdrawn to drive a prime mover to generate electricity during periods of high electrical load requirement, the hydrostatic pressure remaining substantially constant. The gas may be air, carbon dioxide or natural gas, or a gas such as LPG which becomes liquid under pressure. In one embodiment, Fig. 1, the subterranean reservoir is formed by an aquifer bounded by impermeable caprock, compressed air being forced down a shaft 5 into the aquifer by an electrically driven compressor 11 during periods of low load and being withdrawn through a shaft 7 under pressure of the displaced water to drive a turbine 13 and generator 15 during periods of high load requirement. The displaced water maintains the air pressure substantially constant. In a modification, Fig. 2 (not shown), shafts 5, 7 are replaced by a single shaft (16) connected at ground level to a reversible screw type compressor-turbine and motor-generator unit. In a further modification, several aquifer reservoirs are used, the air being stored under low hydrostatic pressure in one reservoir and then being compressed and stored under higher hydrostatic pressure in a second reservoir before being withdrawn, when required, to drive the turbine. The expanded air is returned to the low-pressure reservoir. In a further arrangement, Fig. 3, the air reservoir is formed by a man-made cavity in impermeable rock or salt 25, the hydrostatic pressure on the compressed air being provided by a water pipe 27 passing through the air shaft 26 and connected to a ground level water reservoir 29. The storage plant may supplement the output of a main hydroelectric, steam or diesel driven generating plant.
Patent GB-391932-A (GB)
Title: Improvements in and relating to electric motor control systems
IPC: B65H59/38
Filed: 1932-02-09
Abstract: 391,932. Maintaining defined speeds of motors. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London, and POLLOCK, A. A., Croxton House, Sherbourne Place, Leamington Spa. Feb. 9, 1932, No. 3866. [Class 38 (iii).] The field strength of a motor driving a spindle or drum for reeling wire is regulated automatically, in accordance with the tension in the wire, by looping the wire 3 over two pulleys 4, 5, one of which is fixed, while the other is carried by a pivoted lever 6 controlled by a spring 7, which tends to move the lever in a direction opposite to that induced by the tension in the wire, regulation being effected by movement of the lever. In one arrangement, Fig. 1, in which the reeling drum 2 is driven by a constant voltage motor 1, on increase of the tension in the wire beyond a predetermined amount, the arm 6 is moved against the action of the spring to short-circuit a resistance 10 in series with the field winding 11 of the motor, thereby reducing the speed of the motor. In a modification, Fig. 3, the arm' 6 varies the pressure on a carbon pile resistance 12 in series with the field winding 11. Further modifications for constant current motors are described ; in these movement of the arm on increased tension in the wire is arranged to increase the resistance in the field circuit in order to reduce the speed of the motor.
Patent GB-855963-A (GB)
Title: Improvements in or relating to liquid-liquid extraction columns
Inventor: PRATT HENRY REGINALD CLIVE
IPC: B01D11/04
Filed: 1957-02-05
Abstract: 855,963. Purifying liquids. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. Jan. 31, 1958 [Feb. 5, 1957], No. 3877/57. Class 46. [Also in Group II] A redistributer plate P for the continuous phase (shown in heavy arrows) of a liquid liquid-extraction column 2 comprises an annular device adapted to constrain the continuous phase to move through a central portion 8 of the column but permitting passage of the dispersed phase (shown in small arrows) through the device and the central portion. The device comprises a funnel shaped member 4 having its large end attached to and extending within the channel of an annular channel member 5. The column contains spaced sieve plates 3 above and below plate P, the aggregate area of the openings in each sieve plate being not greater than the area of the orifice 8. Turbulence created in the continuous phase due to its passage through the funnel-shaped member 4 produces a redistribution of the phase after passage through the device. Such redistribution may be augmented by baffle plates or a rotatable turbine wheel placed in the orifice 8.
Patent GB-343719-A (GB)
Title: Improvements in means for making enclosed connections between electrical conductors
IPC: H02G3/16
Filed: 1930-02-05
Abstract: 343,719. Junction boxes; binding- posts. HENLEY'S TELEGRAPH WORKS CO., Ltd., W. T., 11, Holborn Viaduct, London, NICHOLS, W. H., Garthowen, Amersham, Buckinghamshire, and MOOR, E., Medway, Sole Street, Cobham, Kent. Feb. 5, 1930, No. 3897. [Class 38 (i).] Each half 2 of a two-part junction box has mounted within it an insulating disc 3, Fig. 2, having intersecting grooves 13, 14 and 15, 16 across its face. When the box is assembled these faces come together and the grooves coincide to form intersecting channels. Connectors 5, 6 are positioned between the discs at two of the channel intersections, grooves 17 being cut to receive connectors, and the cables 20, 21, 22 pass through the respective channels to the connectors. The connectors comprise rectangular blocks 5, 6 bored longitudinally for part of their lengths, to receive screwed studs 25, 26, and having side slots for the reception of the cable ends.
Patent GB-1020883-A (GB)
Title: Improvements in or relating to hydrostatic bearings
IPC: B23Q1/38
Filed: 1962-10-16
Abstract: 1,020,883. Bearings. ESCHER WYSS A.G. Oct. 16, 1962 [Oct. 20, 1961], No. 39190/62. Heading F2A. In a fluid bearing, pressurized lubricant is supplied to a depression 2 in a slide track 1. The depression 2 is bounded by an edge-piece 5 which is movable by the pressurized lubricant so that a portion thereof is lifted above the sliding surface of the track 1. The amount the edge-piece 5 is lifted is limited by a portion 5a thereof abutting plates 6 which are attached to the track 1 by screws 7. In an embodiment, pressurized lubricant is supplied at 3, Fig. 1 (not shown), and bellows 9 are provided, the expansion of which raises the edge-piece 5. In a modification the bellows 9 are replaced by a soft packing. In another modification, the depression 2 is in a slidable piece 13, Fig. 3 (not shown), and forms a narrow edge 13a thereon. Projections 13b of the piece 13 limit the upward movement thereof by abutting a member 17, which is secured by screws 16 to the track 1. Pressurized lubricant, supplied at 3, enters a chamber 14, raises the piece 13, passes through a duct 15 in the piece 13 and enters the depression 2. The slide-track 1 and the part 4 can be replaced by a sleeve and spindle.
Patent GB-130665-A (GB)
Title: Improvements in the Manufacture of Nitrated Cellulose Products.
Inventor: THOMSON WARDLAW BROWN
IPC: C08B5/02
Filed: 1918-03-07
Abstract: 130,665. Thomson, W. B., Severn, W. D., and Twycross, G. March 7, 1918. Cellulose nitrates; special preparatory treatment of raw cellulose materials.-The wood of the baobab tree is used as the raw material for making nitrocellulose. The wood is disintegrated, boiled in weak caustic soda solution, and washed; it is then treated with dilute hydrochloric acid in a pulping-apparatus until the fibre is substantially separated into single strands, and then washed, dried, and nitrated in the usual manner.
Patent GB-548036-A (GB)
Title: Improvements in and relating to cannulae for hypodermic needles
IPC: A61M5/32
Filed: 1942-03-27
Abstract: 548,036. Alloys. BISHOP & CO. PLATINUM WORKS, J. March 27, 1942, No. 4088. Convention date, Feb. 27, 1941. [Class 82 (i)] [Also in Group XXII] A seamless hypodermic needle cannula is made of an alloy of platinum with about 8-20 per cent., particularly 11 per cent., of ruthenium. Either or both the platinum or ruthenium may be partly replaced by one or more of the metals palladium, iridium, and rhodium. The cannula is made by forming a tube, alternately swaging and annealing the tube over a mandrel, followed by alternate annealing and drawing with reduction of wall thickness, and finally sinking through a succession of dies to reduce the outside diameter to the required size. The initial seamless tube may be formed by rolling a sheet of the alloy'and fusing the edges together, or by deep drawing a sheet of the alloy, or by drilling a cylindrical ingot.
Patent GB-693565-A (GB)
Title: Protective devices in gas purification plants
IPC: G01N25/54
Filed: 1950-02-17
Abstract: <PICT:0693565/III/1> In gas purification plant employing electrical equipment (e.g. an electrostatic precipitator) there is provided a protective arrangement, responsive to the oxygen or air content of the gas, and comprising a chamber 1 into which a sample of gas is introduced at E, and a predetermined quantity of oxygen or air at F, igniting means A in the chamber, and means responsive to ignition within the chamber to initiate protective and/or alarm action.  As a result of adding the air or oxygen, ignition will occur whilst the actual oxygen content of the gas is still within safe limits.  A flexible diaphragm B responds to an increased pressure in the chamber, operating a contact breaker C (see Group XXXVII) in the circuit of the electrical equipment.  The circuit may also be broken by a thermostat D, responsive to an increase in temperature.  The ignition means may be a sparking plug or an electrically heated element.  Gas to be tested and additional air are introduced into the chamber by a compressor 3, either intermittently or continuously; with intermittent operation, the compressor may be synchronized with the action of the sparking plug.  Ignited gas passes from the chamber to an expansion vessel 2 provided with a safety valve.  Fluid seal devices may isolate the chamber from the gas supply.
Patent GB-263337-A (GB)
Title: Improved construction of bangle or band for personal wear
IPC: A44B11/20
Filed: 1926-02-13
Abstract: 263,337. Smith, C. P. Feb. 13, 1926. Stud and slot fastenings.-The stud c of a stud and slot fastening for a bracelet having overlapping ends a<2>, a<3>, is formed by soldering or otherwise securing a ball c in a cup-shaped seating secured to one of the ends of the bracelet.
Patent GB-217863-A (GB)
Title: Improvements relating to devices for the measurement of heat
IPC: G01N25/18
Filed: 1924-02-18
Abstract: 217,863. Schmidt, E. Feb. 18, 1924. Heat and temperature coefficients, apparatus for determining.- A device for measuring the flow of heat through a surface such as a wall &c. consists of a plate, the heat-insulation effect of which is so small that it does not appreciably affect the heat current, the plate being placed in contact with the said surface and being provided with means for measuring the difference of temperature between its opposite faces. In the form shown the plate a is provided with a number of thermo-couples wound around it in such a way that all the hot junctions b are on one face and all the cold junctions b' on the other, the end couples being connected to a galvanometer &c. f. The wires may be protected by an insulating material or they may be embedded in the plate itself. The plate may be made of a flexible material such as rubber, leather, &c. In the case of a cylindrical surface such as a steampipe, the plate is in the form of a flexible strip wrapped round the pipe. The thermo-couples may be replaced by electric resistance elements. The measuring-instrument may be graduated to give a direct reading of the heat current.
Patent GB-640319-A (GB)
Title: Apparatus for collecting and removing heaped solid materials, also applicable to theexcavation of galleries in mines
IPC: B65G65/14
Filed: 1948-02-13
Abstract: 640,319. Jigging conveyers; conveying from working face in mines. JARUZA AKT.-GES. Feb. 13, 1948, No. 4230. Convention date, Feb. 18, 1947. [Classes 78 (i) and 78 (iv)] Apparatus for collecting and removing solid material consists of a trough terminating in a shovel, the mass of which is set in vibration, the reaction of the vibrations on the framework of the apparatus being neutralized by setting in vibration, in opposed phase, a mass equivalent to that of the trough. The vibrating member 1 and shovel 2 are connected by links 6 and 7 to the chassis 8. Rods 9 connect the chassis with a shaft 10 driven through gearing by a motor 13 having a fly-wheel 14. Two counterweights 15 having forward rams 16, 17 are connected to the chassis by links 18, 19 and to the driven shaft 10 by rods 20 in counter-phase to the rods 9. The assembly may be mounted on endless tracks 22 on trucks 21 having jacks 25 for adjusting the height of the shovel. The arrangement may be used pivoted to a loader on a movable truck and discharging on to a delivery conveyer. Front guards 39 are provided and the loader may be mounted on shoes. The vibrating member 1 may be in two parts vibrating out of phase for use as a simple charger without the counterweights. Specifications 26606/01, [Class 78], and 13722/09, [Class 78 (i)], are referred to.
Patent GB-884029-A (GB)
Title: A method of producing l-malic acid by fermentation
Inventor: ABE SHIEGO
IPC: C12P7/46
Filed: 1960-02-05
Abstract: L-malic acid is produced by cultivating under aerobic conditions a 1-malic acid-producing strain of Aspergillus parasiticus spheare, Aspergillus flavus Link or Aspergillus oryzae (ahlburg) Cohn in a culture medium containing assimilable sources of carbohydrate, nitrogen and inorganic salts, adding calcium carbonate and/or magnesium carbonate whereby the pH of the medium is maintained within the rante of 5.0 to 7.5, until a substantial amount of 1-malic acid salt is produced, recovering said salt, and converting it to 1-malic acid by any known method. An organic acid such as pyruvic or fumaric acid, or a salt thereof, may be added as may at least one of the salts FeSO4, MnCl2, Al2(SO4)3 and K2Cr2O7.  Liquid or solid media may be used. Temperatures of 20 DEG C.-35 DEG C. are suitable.
Patent GB-196555-A (GB)
Title: Improvements in or relating to brake transmission gear of transport and trailer vehicles
IPC: B60T13/36
Filed: 1921-11-22
Abstract: 196,555. Page, G., and Dewing, L. Nov. 22, 1921. Flexible transmitters.-Relates to connections for operating from the tractor vehicle the brakes of a trailer vehicle of the kind provided with a single pair of wheels and attached to the tractor by a perch pin. As shown in Fig. 1, the brake connection comprises a cable r passing through the hollow perch pin s and over pulleys w mounted upon shoulders u, v on this pin or upon the bolsters t. The pin scan be removed for disconnecting the trailer from the tractor by unscrewing the collar v, and that part of the cable which passes through the pin is connected, to the main part by snap hooks or other fastenings so that it can be removed with the pin. As shown in Fig. 4, the cable r passes between a pair of pulleys 16 mounted upon a collar 14 detachably secured to the perch pin s by a cotter bolt. When fluid-pressure brakes are used the hollow perch pin serves as a duct for the fluid as indicated at s in Fig. 5. The fluid-pressure system may comprise a piston 5 actuated by a hand lever 6 to force oil or air from a cylinder 4 to another cylinder 4' the piston of which is connected through an equalizing lever z to the brakes 11, or the brakes may normally be held off against the action of springs, by vacuum produced by connecting the system to the intake pipe of the engine, application of the brakes being effected by closing this connection and opening the system to the atmosphere.